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In both cases, there were strange clouds seen in the sky.Here you could see the videotapes of both cases.

Scientists from the city’s weather forecast service, in Moscow, said there is nothing supernatural, however.“It’s a purely optical effect, even if a spectacular one. You can see really strange things if you watch the clouds regularly,” “Several air fronts have passed Moscow recently, including an inflow of cold air from Arctic, and they combined to produce such a phenomenon.”

PASADENA, Calif. -- Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036.

The Apophis asteroid is approximately the size of two-and-a-half football fields. The new data were documented by near-Earth object scientists Steve Chesley and Paul Chodas at NASA's Jet Propulsion Laboratory in Pasadena, Calif. They presented their updated findings at a meeting of the American Astronomical Society's Division for Planetary Sciences in Puerto Rico on Oct. 8.

"Apophis has been one of those celestial bodies that has captured the public's interest since it was discovered in 2004," said Chesley. "Updated computational techniques and newly available data indicate the probability of an Earth encounter on April 13, 2036, for Apophis has dropped from one-in-45,000 to about four-in-a million."

A majority of the data that enabled the updated orbit of Apophis came from observations Dave Tholen and collaborators at the University of Hawaii's Institute for Astronomy in Manoa made. Tholen pored over hundreds of previously unreleased images of the night sky made with the University of Hawaii's 2.2-meter (88-inch) telescope, located near the summit of Mauna Kea.

Since 2005, the Ad Astra Rocket Company of Webster, Texas, founded by former astronaut Frankling Chang-Díaz, has been working to perfect a type of engine it calls VASIMR (Variable Specific Impulse Magnetoplasma Rocket).

Now, the company has run its VX-200 engine at 201 kilowatts in a vacuum chamber in Houston, passing the 200-kilowatt mark for the first time.

It has been a long while that I have not visited the National Air & Space Museum in Washington D.C.

That –of course— against my will, but anyhow, that was the situation until yesterday I decided to go.It is out of question that it has been and always will be my favorite museum.And a huge surprise was expectingme there.I will only tell you that there were various UAVs in exhibition, something that never happened before.

And I couldn’t stop taking pictures of them, besides the impact of been able to see them not in pictures or in videos, but in reality.

It was fantastic!

It is also the Hubble Space Telescope in full size.

Now I share with you some of those pictures, and invite you to come to Washington D.C. and to visit the National Air & Space Museum, pretty sure that it will be an unforgettable experience in your life

Thanks to the member of UAPSG Mr. Gonzalo Piano (Montevideo, Uruguay), we get to know that under this title the magazine WIRED, published on September 29, 2009, a very interesting article with astonishing photos of those clouds and their explanations.